288 lines
12 KiB
Scheme
288 lines
12 KiB
Scheme
;;; GNU Guix --- Functional package management for GNU
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;;; Copyright © 2012 Ludovic Courtès <ludo@gnu.org>
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;;;
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;;; This file is part of GNU Guix.
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;;;
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;;; GNU Guix is free software; you can redistribute it and/or modify it
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;;; under the terms of the GNU General Public License as published by
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;;; the Free Software Foundation; either version 3 of the License, or (at
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;;; your option) any later version.
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;;;
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;;; GNU Guix is distributed in the hope that it will be useful, but
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;;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;;; GNU General Public License for more details.
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;;;
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;;; You should have received a copy of the GNU General Public License
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;;; along with GNU Guix. If not, see <http://www.gnu.org/licenses/>.
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(define-module (guix build gnu-build-system)
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#:use-module (guix build utils)
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#:use-module (ice-9 ftw)
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#:use-module (ice-9 match)
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#:use-module (ice-9 format)
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#:use-module (srfi srfi-1)
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#:use-module (srfi srfi-26)
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#:export (%standard-phases
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gnu-build))
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;; Commentary:
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;;
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;; Standard build procedure for packages using the GNU Build System or
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;; something compatible ("./configure && make && make install"). This is the
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;; builder-side code.
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;;
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;; Code:
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(define (first-subdirectory dir)
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"Return the path of the first sub-directory of DIR."
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(file-system-fold (lambda (path stat result)
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(string=? path dir))
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(lambda (path stat result) result) ; leaf
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(lambda (path stat result) result) ; down
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(lambda (path stat result) result) ; up
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(lambda (path stat result) ; skip
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(or result path))
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(lambda (path stat errno result) ; error
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(error "first-subdirectory" (strerror errno)))
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#f
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dir))
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(define* (set-paths #:key inputs (path-exclusions '())
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#:allow-other-keys)
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(define (relevant-input-directories env-var)
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;; Return the subset of INPUTS that should be considered when setting
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;; ENV-VAR.
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(match (assoc-ref path-exclusions env-var)
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(#f
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(map cdr inputs))
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((excluded ...)
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(filter-map (match-lambda
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((name . dir)
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(and (not (member name excluded))
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dir)))
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inputs))))
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(set-path-environment-variable "PATH" '("bin")
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(relevant-input-directories "PATH"))
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(set-path-environment-variable "CPATH" '("include")
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(relevant-input-directories "CPATH"))
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(set-path-environment-variable "LIBRARY_PATH" '("lib" "lib64")
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(relevant-input-directories "LIBRARY_PATH"))
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;; FIXME: Eventually move this to the `search-paths' field of the
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;; `pkg-config' package.
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(set-path-environment-variable "PKG_CONFIG_PATH"
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'("lib/pkgconfig" "lib64/pkgconfig")
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(relevant-input-directories "PKG_CONFIG_PATH"))
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;; Dump the environment variables as a shell script, for handy debugging.
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(system "export > environment-variables"))
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(define* (unpack #:key source #:allow-other-keys)
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(and (zero? (system* "tar" "xvf" source))
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(chdir (first-subdirectory "."))))
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(define* (patch-source-shebangs #:key source #:allow-other-keys)
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"Patch shebangs in all source files; this includes non-executable
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files such as `.in' templates. Most scripts honor $SHELL and
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$CONFIG_SHELL, but some don't, such as `mkinstalldirs' or Automake's
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`missing' script."
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(for-each patch-shebang
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(remove file-is-directory? (find-files "." ".*"))))
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(define (patch-generated-file-shebangs . rest)
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"Patch shebangs in generated files, including `SHELL' variables in
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makefiles."
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;; Patch executable files, some of which might have been generated by
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;; `configure'.
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(for-each patch-shebang
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(filter (lambda (file)
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(and (executable-file? file)
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(not (file-is-directory? file))))
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(find-files "." ".*")))
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;; Patch `SHELL' in generated makefiles.
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(for-each patch-makefile-SHELL (find-files "." "^(GNU)?[mM]akefile$")))
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(define* (patch #:key (patches '()) (patch-flags '("--batch" "-p1"))
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#:allow-other-keys)
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(every (lambda (p)
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(format #t "applying patch `~a'~%" p)
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(zero? (apply system* "patch"
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(append patch-flags (list "--input" p)))))
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patches))
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(define* (configure #:key inputs outputs (configure-flags '()) out-of-source?
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#:allow-other-keys)
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(let* ((prefix (assoc-ref outputs "out"))
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(bindir (assoc-ref outputs "bin"))
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(libdir (assoc-ref outputs "lib"))
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(includedir (assoc-ref outputs "include"))
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(bash (or (and=> (assoc-ref inputs "bash")
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(cut string-append <> "/bin/bash"))
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"/bin/sh"))
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(flags `(,(string-append "CONFIG_SHELL=" bash)
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,(string-append "SHELL=" bash)
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,(string-append "--prefix=" prefix)
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"--enable-fast-install" ; when using Libtool
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;; Produce multiple outputs when specific output names
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;; are recognized.
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,@(if bindir
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(list (string-append "--bindir=" bindir "/bin"))
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'())
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,@(if libdir
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(list (string-append "--libdir=" libdir "/lib"))
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'())
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,@(if includedir
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(list (string-append "--includedir="
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includedir "/include"))
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'())
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,@configure-flags))
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(abs-srcdir (getcwd))
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(srcdir (if out-of-source?
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(string-append "../" (basename abs-srcdir))
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".")))
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(format #t "source directory: ~s (relative from build: ~s)~%"
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abs-srcdir srcdir)
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(if out-of-source?
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(begin
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(mkdir "../build")
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(chdir "../build")))
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(format #t "build directory: ~s~%" (getcwd))
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(format #t "configure flags: ~s~%" flags)
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;; Use BASH to reduce reliance on /bin/sh since it may not always be
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;; reliable (see
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;; <http://thread.gmane.org/gmane.linux.distributions.nixos/9748>
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;; for a summary of the situation.)
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;;
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;; Call `configure' with a relative path. Otherwise, GCC's build system
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;; (for instance) records absolute source file names, which typically
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;; contain the hash part of the `.drv' file, leading to a reference leak.
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(zero? (apply system* bash
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(string-append srcdir "/configure")
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flags))))
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(define %parallel-job-count
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;; String to be passed next to GNU Make's `-j' argument.
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(match (getenv "NIX_BUILD_CORES")
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(#f "1")
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("0" (number->string (current-processor-count)))
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(x x)))
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(define* (build #:key (make-flags '()) (parallel-build? #t)
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#:allow-other-keys)
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(zero? (apply system* "make"
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`(,@(if parallel-build?
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`("-j" ,%parallel-job-count)
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'())
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,@make-flags))))
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(define* (check #:key (make-flags '()) (tests? #t) (test-target "check")
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(parallel-tests? #t)
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#:allow-other-keys)
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(if tests?
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(zero? (apply system* "make" test-target
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`(,@(if parallel-tests?
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`("-j" ,%parallel-job-count)
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'())
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,@make-flags)))
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(begin
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(format #t "test suite not run~%")
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#t)))
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(define* (install #:key (make-flags '()) #:allow-other-keys)
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(zero? (apply system* "make" "install" make-flags)))
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(define* (patch-shebangs #:key outputs (patch-shebangs? #t)
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#:allow-other-keys)
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(define (list-of-files dir)
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(map (cut string-append dir "/" <>)
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(or (scandir dir (lambda (f)
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(let ((s (stat (string-append dir "/" f))))
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(eq? 'regular (stat:type s)))))
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'())))
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(define bindirs
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(append-map (match-lambda
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((_ . dir)
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(list (string-append dir "/bin")
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(string-append dir "/sbin"))))
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outputs))
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(when patch-shebangs?
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(let ((path (append bindirs
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(search-path-as-string->list (getenv "PATH")))))
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(for-each (lambda (dir)
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(let ((files (list-of-files dir)))
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(for-each (cut patch-shebang <> path) files)))
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bindirs)))
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#t)
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(define* (strip #:key outputs (strip-binaries? #t)
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(strip-flags '("--strip-debug"))
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(strip-directories '("lib" "lib64" "libexec"
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"bin" "sbin"))
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#:allow-other-keys)
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(define (strip-dir dir)
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(format #t "stripping binaries in ~s with flags ~s~%"
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dir strip-flags)
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(file-system-fold (const #t)
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(lambda (path stat result) ; leaf
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(zero? (apply system* "strip"
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(append strip-flags (list path)))))
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(const #t) ; down
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(const #t) ; up
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(const #t) ; skip
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(lambda (path stat errno result)
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(format (current-error-port)
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"strip: failed to access `~a': ~a~%"
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path (strerror errno))
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#f)
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#t
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dir))
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(or (not strip-binaries?)
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(every strip-dir
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(append-map (match-lambda
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((_ . dir)
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(filter-map (lambda (d)
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(let ((sub (string-append dir "/" d)))
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(and (directory-exists? sub) sub)))
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strip-directories)))
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outputs))))
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(define %standard-phases
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;; Standard build phases, as a list of symbol/procedure pairs.
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(let-syntax ((phases (syntax-rules ()
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((_ p ...) `((p . ,p) ...)))))
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(phases set-paths unpack patch
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patch-source-shebangs configure patch-generated-file-shebangs
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build check install
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patch-shebangs strip)))
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(define* (gnu-build #:key (source #f) (outputs #f) (inputs #f)
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(phases %standard-phases)
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#:allow-other-keys
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#:rest args)
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"Build from SOURCE to OUTPUTS, using INPUTS, and by running all of PHASES
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in order. Return #t if all the PHASES succeeded, #f otherwise."
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(setvbuf (current-output-port) _IOLBF)
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(setvbuf (current-error-port) _IOLBF)
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;; The trick is to #:allow-other-keys everywhere, so that each procedure in
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;; PHASES can pick the keyword arguments it's interested in.
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(every (match-lambda
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((name . proc)
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(let ((start (gettimeofday)))
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(format #t "starting phase `~a'~%" name)
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(let ((result (apply proc args))
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(end (gettimeofday)))
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(format #t "phase `~a' ~:[failed~;succeeded~] after ~a seconds~%"
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name result (- (car end) (car start)))
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result))))
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phases))
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